Toyota Sienna Navigation System

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own a 2002 Landcruiser. Took car for collision repair. Got car back and car would stall during idle; navigation system screen is blank except for cursor: the is no map. This thread has been heavily discussed here. Questions please: a) what is best course of action? b) side question: does the navigation system require the system disk inserted in the ECU to operate?

I keep hearing good things about Garmin but there are too many to choose from. I may purchase one at Costco. I think that the nav. in the car would not give me everything I need. accuracy, detailed directions, very current directions and clear voice and screen. I think the voice activated one may be nice. what else is there to look for?Thanks, WC4

Same happened in my case. Driving home from the dealership after a $300 repair and the whole system crashes - DVD/NAV/Radio/Rear Camera. Found a auto car audio specialist in after market/out of warranty fixes and they analyzed it for $60 and found the Mother Board in the NAV system failed - $700 to fix. I figure it's better than $3000 so I'm giving it a try. I'll comment back after they fix it.

Replaced nav with rebuilt from online source (buyautoparts.com). Cost was about $1300 plus $800 core that get credited-back when you return the original (one year warranty, they pay for shipping). My experience with this vendor was very civilized, other probably are too. You can do the exchange yourself easily in about 15 minutes (pop-out fake wood trim on either side of nav using flat-head screw-driver, 4 Philips-head screws on side of nav to remove black cover thingy, 4x10mm bolts in back to remove unit (I didn't drop any, but imagine this could be problematic if you do) -- lots of connectors in back, but each is different from the next and color-coded to boot. Needs DVD from Toyota (about $200) to boot system, but this worked first time and I haven't encountered any problem. Good luck.

"I went to loading button instead and the JP-TSW is highlighted, I switch to US-RSW and now I have an error of unable to access program with some Chinese characters on it. How do I get back to that override screen."

I know this is an old post...but did you find a fix for this problem? I have the same problem.

I also had this issue come up, were you able to fix this Chinese characters issue? I was installing a latest nav DVD and in the override screen I accidentally selected Japanese nav and ended up in this mess. Please if you have sorted this out I would appreciate your response.

I just tried upgrading Navigation DVD in my 04 Toyota Sienna, however in the override screen I accidentally pressed a wrong button which now shows Japanese or Chinese letter and gives me error message. How can I go back to this DVD units original state? I have read about removing the battery from the Nav DVD player's battery etc but does that work? Do anybody know the easiet fix for this? If any body out there can help me I would greatly appreciate it.